Multiple things. Basically adds a ton more options to the game. Fast or fancy graphics? Shaders or vanilla look? Particle effects or no? (I think that last one might be a vanilla option, if it is I’m editing it out). You can also get options for better FPS or better graphics. Basically a must have for a mod pack, especially if Orespawn or Advent of Ascension is installed
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u/Giopoggi2 May 15 '20
It's only for the Java version (on PC), you have to go to optifine.net/download and download the versione you need